You already eat a healthy, balanced diet containing fish, and you buy omega-3 enriched eggs at the supermarket. So why is your doctor recommending you take an omega-3 supplement to treat your dry eyes?  Let’s break it down. Omega-3 in the form of EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are the most effective. Omega-3 is an essential nutrient, meaning the human body can’t synthesize it; we have to get it from food sources like